19822527

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 32617728

約数和(自身を除く): 12795201

約数列:

[1, 3, 9, 17, 23, 43, 51, 69, 129, 131, 153, 207, 387, 391, 393, 731, 989, 1173, 1179, 2193, 2227, 2967, 3013, 3519, 5633, 6579, 6681, 8901, 9039, 16813, 16899, 20043, 27117, 50439, 50697, 51221, 95761, 129559, 151317, 153663, 287283, 388677, 460989, 861849, 1166031, 2202503, 6607509, 19822527]

約数ペア:

[(1, 19822527), (3, 6607509), (9, 2202503), (17, 1166031), (23, 861849), (43, 460989), (51, 388677), (69, 287283), (129, 153663), (131, 151317), (153, 129559), (207, 95761), (387, 51221), (391, 50697), (393, 50439), (731, 27117), (989, 20043), (1173, 16899), (1179, 16813), (2193, 9039), (2227, 8901), (2967, 6681), (3013, 6579), (3519, 5633)]